Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000us-gaap_PreferredStockSharesAuthorized	500,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000us-gaap_CommonStockSharesAuthorized	125,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	20,856,000us-gaap_CommonStockSharesIssued	20,491,000us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	18,153,000us-gaap_CommonStockSharesOutstanding	19,756,000us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	2,703,000us-gaap_TreasuryStockShares	735,000us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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